الفهرس 
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Abstract
This work was done to study the antioxidants effect (salicylic acid, ascorbic acid and citric acid) only and combined with Trichoderma harzianum and Trichoderma viridie on wilt disease of soybean caused by Fusarium oxysporum and also studying chromosomal aberrations which resulted from treating Vicia faba as a testing plant with previous treatments. And it was found that treatment with combination salicylic acid (3 mM) and Trichoderma harzianum was the most effective one on the wilt disease with the least percentage of chromosomal abnormalities.